In IPP 3.0, FFT2 only suports float data format. double is supoorte in IPP 4.0?
Double type is not supported in Intel IPP 4.0 neither, what is your concern for this data type in 2D FFT?
Thank you very much for your response.
I am doing something on image processing. In this project, the image size is 4096X4096 or above, I have to perform the FFTs of 4-6 images andpeferform some operations among them, so, sometimes, the result became overflow. If in double type, no overflow, I think.
(I have tried to divide a constant after FFT, but it is possible to lose accuracy, is not it?).
I'm afraid you will get mem overflow having several images 4Kx4K of double